#!/bin/sh

# Slackware build script for DevIL
# Written by Phil Warner <pc_warner@yahoo.com>
# Modified by Robby Workman <rworkman@slackbuilds.org>

PRGNAM=DevIL
VERSION=${VERSION:-1.6.8}
PKG_VERSION=${VERSION}_rc2
BUILD=${BUILD:-3}
TAG=${TAG:-_SBo}

# Automatically determine the architecture we're building on:
if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i486 ;;
    arm*) ARCH=arm ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
       *) ARCH=$( uname -m ) ;;
  esac
fi

CWD=$(pwd)
TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

set -e

rm -rf $PKG 
mkdir -p $TMP $PKG $OUTPUT
cd $TMP 
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$(echo $PKG_VERSION | tr _ -).tar.gz
cd $PRGNAM-$VERSION
chown -R root:root .
find . \
 \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
 -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
 -exec chmod 644 {} \;

# Fixes a libpng 1.4 problem.
patch -p1 < $CWD/patches/devil-1.6.8-libpng14.patch

# Fix the typo that prevents building with Allegro
# Also patch files to change (ILvoid) to (void) in order to
# fix issues with gcc 4.2.
# Thanks to David Somero for the heads up on this.
patch -p1 < $CWD/patches/ILvoid_fix_1.diff
patch -p1 < $CWD/patches/ILvoid_fix_2.diff
# There is a space in the filename's path, so we have to cd into 
# the offending directory before patching.
( cd cpp\ wrapper
  patch < $CWD/patches/ILvoid_fix_3.diff
)

CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --build=$ARCH-slackware-linux

force_arch="$ARCH" make
make install DESTDIR=$PKG

find $PKG | xargs file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a AUTHORS COPYING CREDITS ChangeLog INSTALL Libraries.txt \
  NEWS README README.unix TODO $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$PKG_VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}
